Heya. Ok Stop. relax a bit, breathe and let this sink in. Low calorie diets will cause your metabolism to slow down and you dont loose weight. Your body thinks it is starving and holds onto every damn calorie. You dont feel hungry but that is a trick of your hormones being all fudged up.
Now if I read it right you just started in Jan, is that correct? Then likely most of what you lost is initial water loss.
We dont know how old you are or how big you are and I dare say you are not ready to screw about with wacky protocols.
1. Have you read the book?
2. have you understood the book?
Since weight loss is your primary goal as stated, I assume you are significantly overweight? I apologize if I am on the wrong track but gosh darn it woman, you did not get cuddly in a month, you wont loose it in a month.
Eat a good healthy diet, do not starve yourself, let your body adapt to a healthy way to live, let your hormones adapt to this and re regulate themselves. Forget weight loss for the time being and just eat properly.
Fix your sleep.
Slow down your exercise to some walking and some weights, dont kill yourself and try to do it with an empty gas tank you will fudge yourself. Badly.
PCOS is a pain but you can deal with it, slowly. Let your body heal and eat say 1800 to 2000 cal a day.
Start with the idea that each meal should be a palm sized hunk of protein, some fat and as much veggies as you can fit on a plate and repeat for breakfast lunch and dinner. Robb Wolf recommends you should be eating 1 gram of protein for each lb of your body weight a day.
(This works for me and I feel so much better, in my case of being 260 lbs, which means 260 grams of protein and since 7 grams to the ounce gives you 260/7 = 37 ounces of meat a day = 1440 Cal a day just in meat then a crap load of leafy or non starchy veggies and enough fat to give me my daily cal limit of 3000 ( I am a big guy working a hard physical job) This is about as much counting as I ever bother with.)
Soon enough you will find your metabolism is running better, your body wont be starving all the time and you will feel better and your need for food with reduce to where you can eat when hungry and not fudge yourself further.
If you give us more personal info, we can help guide you further but really go read the book, what you want to do is not going to help and it really is unhealthy.